The Pro Series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.

More From This Category

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Brodix, For Pontiac Raised Port, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Brodix, For Pontiac Raised Port, Kit

$497.41

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Pro Action 14 Heads w/ Tall Deck Block, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Pro Action 14 Heads w/ Tall Deck Block, Kit

$565.27

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SBC w/ -12 Aluminium Block, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SBC w/ -12 Aluminium Block, Kit

$471.46

ARP Cylinder Head Stud, Pro-Series, 12-point Nuts U/C Studs, For Chevrolet SB, 18 Bowtie, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nuts U/C Studs, For Chevrolet SB, 18 Bowtie, Kit

$598.60

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Chevrolet SB, LS Series, LSA ARP2000, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Chevrolet SB, LS Series, LSA ARP2000, Kit

$899.16

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Bowtie Block with Pro Action 14 Heads, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, Bowtie Block with Pro Action 14 Heads, Kit

$575.22